Ho model



PATENTED SEPT. 20, 1904.

H. T. BAKER.

MACHINE FOR MAKING STAIR PADS.

APPLICATION FILED APR. 14. 1904.

' 2 SHEETS-SHEET 1.

H0 MODEL.

No. 770,345 PATENTED SEPT. 20, 1904. H. T. BAKER. MACHINE FOR MAKING STAIR PADS.

APPLICATION FILED APR. 14, 1904. 4

N0 MODEL. 2 SHEETS-SHEET 2.

UNITED STATES Patented September 20, 1904.

PATENT OEEIcE.

MACHINE FOR MAKING STAIR-PADS.

SPECIFICATION forming part of Letters Patent No. 770,346, dated- September 20, 1904.

Application filed April 14, 1904.

To all whom it may concern.-

board or millboard foundation or back; and

the object ofthe invention is to so construct the machine that it will bend the edge or edges of the stair-pad to conform to the nosing of the step, this object being attained by the peculiar construction and operation of the parts of the machine, as hereinafter more fully set forth, and more particularly pointed out in the claims.

In the drawings, Figure 1 is a perspective view of the complete machine, showing the parts in their inoperative or normal position. Fig. 2 is a similar view showing the position of the parts when shaping or bending the edge of a stair-pad. Fig. 3 is a perspective view of the pasteboard or millboard backing for a stair-pad before having been shaped or bent by the machine. Fig. 4 isa similar view after the same has been shaped or bent. Fig. 5 is a perspective view of the stair-pad with the covering partly broken away to show the bat or padding.

Like letters of reference refer to like parts throughout the specification and drawings.

In making the stair-pads I saturate one edge of the pasteboard or millboard a to a depth equal to the curved or rounded portion 6 and then place the backing a in the machine, so that the male and female bending members 0 and cl, respectively, will engage the saturated edge and bend it to the required shape, which, as shown in Fig. 4 of the drawings, is substantially semicircular in cross-section to closely embrace the rounded nose of the step. The male bending member 0 is connected to and carried by two swinging arms 6, pivotally or otherwise connected to the sides of the main frame f, so as to oscillate between the vertical and horizontal position shown in Serial No. 203,203. (No model.)

Figs. 1 and 2, respectively, and hinged to the main frame f, so as to engage the male bending member 0 when in its lowered or horizontal position, is the female bending member d, having a curved recess 9 to contain the material and the male bending member. In shaping the pasteboard or millboard backing a the dry edge is placed against the gage h, connected to the top of the frame f, and the saturated edge is opposed to the recess of the female member 03 when in the position shown in Fig. 1. The male bending member is then moved into the lowered position and engages and partially bends the saturated portion of the backing, the female bending member being then closed over the material and the bending member to complete the bending of the saturated edge of the backing by forcing it against and around the male bending member. To facilitate the bending operation of the male and female bending members, one of them is heated with any suitable agent for that purpose, such as electricity, steam, or gas. As shown in the drawings, two electric conductors are connected to the male bending member 0 to furnish this member with an electric current, which is found to be the cleanest and one of the simplest of heating agents, and it has also been found preferable to heat the male bending member instead of the female, as by doing so a more positive bend is secured.

By reference to Fig. 1 of the drawings it will be noticed that the top of the main frame f, where it is engaged by the male member 0, is provided with a curved seat for the male bending member 0, the curvature of the seat j blending into the curvature of the recess 9 when the female member is in the position shown in Fig. 2. It will also be noticed by reference to Figs. 1 and 2 of the drawings that each end of the top of the main frame f is provided with a female bending member (Z and that the male bending member 0 is arranged to swing into position to engage successively each female bending member. By providing the two female bending members the machine can be kept in constant operation, as the male member can be employed for bending the backing at one end of the machine while the material is being placed in position at the other end.

After the pasteboard or millboard backing a has been bent to the required shape the curved or rounded portion 6 is covered with paste or glue, and the backing is then inserted with the bat in into the casing Z to complete the stair-pad, which is then placed in the ma-' chine as in the manner before stated, and the male and female bending members are again brought into the position shown in Fig. 2 to cause the casing to adhere to and correspond with the curved or rounded portion 6 of the backing and to dry the paste. When this operation has been completed, the stair-pad is removed from the machine and the manufacture of the stair-pad is completed.

To balance the swinging arms 0 in a substantially vertical position, weights or counterbalances e are connected to their free ends, which not only hold the swinging arms in their vertical position, but also return them to this position when the male member has been freed from contact with the female member.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a machine for making stair-pads, the combination of a support for the material, a male bending member arranged to engage the same, a female bending member arranged to embrace the male bending member and assist it in bending the material, and means for heating one of said bending members to enable it to dry the material during the bending operation.

2. In a machine for making stair-pads, the combination of a support for the material, a male bending member oscillatingly connected thereto, a female bending member connected to the support coacting with the male bending member to bend the material, and means for heating one of said bending members.

3. In a machine for making stair-pads, the combination of a male bending member, a support for the material having thereon a seat for the male bending member, a female bending member connected to the support contiguous to the seat having a recess therein, the curvature of which blends into the curvature of the seat when the female bending member is moved into position to embrace the male bending member, and means for heating one of said bending members.

4:. In a machine for making stair-pads, the combination of a male bending member, a support for the material having thereon a seat for the male bending member, a female bending member connected to the support contiguous to the seat and having a recess therein, the curvature of which blends into the curvature of the seat when the female bending member is moved into position to embrace the male bending member, a gage for the support opposed to the seat, and means for heating one of said members.

April 9, A. D. 1904.

HENRY T. BAKER.

In presence of (J. H. RIoHEs, L. F. BROOK. 

